logic-extract

logic-extract is a skill for Claude Code, Codex from jschulte/claude-plugins. It costs 64 tokens per session (3,769 once invoked), scanned A, original, no licence file.

A tool for following one business rule through code spread across several repositories, which are separate codebases. Starting from details you provide, it finds relevant repositories, follows the rule from beginning to end, and writes a technology-independent specification.

In plain words
What is it for?
Use it to trace an algorithm, identify missed repositories, and document business rules, decisions, expected cases, errors, and the complete flow.
Why use it?
It helps when the behavior is split across services or repositories and the full flow is hard to understand from one codebase.

Skill for Claude CodeCodex

Part of the stackshift plugin — 20 skills, 26 commands, 1 agent, 1 hook shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/jschulte/claude-plugins/logic-extract
Any agent
npx skills add jschulte/claude-plugins --skill logic-extract
Clone the repo
git clone --depth 1 https://github.com/jschulte/claude-plugins

Made for: Claude Code, Codex.

Or install stackshift, the plugin that ships this one along with the rest of its 20 skills, 26 commands, 1 agent, 1 hook.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for logic-extract

README.md
[![agentmods](https://agentmods.dev/badge/skills/jschulte/claude-plugins/logic-extract.svg)](https://agentmods.dev/skills/jschulte/claude-plugins/logic-extract)
Your own site
<a href="https://agentmods.dev/skills/jschulte/claude-plugins/logic-extract"><img src="https://agentmods.dev/badge/skills/jschulte/claude-plugins/logic-extract.svg" alt="Measured on agentmods" height="20"></a>
Per session 64 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,769 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00064 $0.03769
Opus 5 $0.00032 $0.01885
Sonnet 5 $0.00013 $0.00754
Haiku 4.5 $0.00006 $0.00377

Measured 3d ago against content hash 0d67b2d2e066, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

logic-extract scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 3d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

stackshift/skills/logic-extract/SKILL.md · 409 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 3d ago First seen · 409 lines · 64 tokens per session scan A 0d67b2d2e066

Subscribe to this mod's changes

logic-extract is a skill published in the GitHub repository jschulte/claude-plugins (3 stars, last pushed 5mo ago), with no licence file. It adds 64 tokens to every session and 3,769 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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